A chainsaw is a big and dangerous tool that cuts trees and logs into smaller pieces. It has some special features that make it safe to use.
Firstly, the chainsaw has a chain brake. This is a special switch that stops the chain from moving when you release it. It helps to prevent accidental cuts or injuries.
Secondly, the chainsaw has a throttle lock. This keeps the throttle (or speed) of the chainsaw in one place, so you don't have to hold it down all the time. It helps to prevent accidental operation of the chainsaw.
Thirdly, the chainsaw has a guard or shield that covers the cutting chain when it is not in use. This helps to protect the user from the sharp chain.
Lastly, some chainsaws have an anti-vibration feature. This helps to reduce the amount of vibration that you feel when using the chainsaw. It can prevent fatigue and muscle strain.
All of these features work together to make the chainsaw safer to use, but it's important to always use caution and wear protective gear when operating any power tool.